Application of near-infrared hyperspectral sensors from satellite in earthquake-related gas monitoring:Taking the eastern boundary of Qinghai Tibet Plateau as an example
Application of near-infrared hyperspectral sensors from satellite in earthquake-related gas monitoring:Taking the eastern boundary of Qinghai Tibet Plateau as an example
In order to promote the application of hyperspectral technology in seismic-related gas monitoring,this paper selects near-infrared hyperspectral sensors with strong sensitivity to near-surface information to TROPOMI data and evaluates the application effect of near-infrared sensors in seismic-related gas monitoring in the northeast margin of the Qinghai-Tibet Plateau and the Sichuan-Yunnan region.The results show that the CH4 and CO gas in the study area of TROPOMI inversion show obvious seasonal variation in time,which is affected by climate change,landform and human activities,and the high value in Yinchuan,Weihe River and Sichuan Basin is affected by geological background,topography and human activities.Although the time resolution of the near-infrared sensor data and the data efficiency in the Sichuan-Yunnan region are poor,it can't be effectively applied to earthquake monitoring and prediction,but compared with the thermal infrared hyperspectral sensor,the near-infrared sensor can better reflect the near-surface structural characteristics.With the development and application of near-infrared hyperspectral sensors,near-infrared data can gradually make up for the low sensitivity of thermal infrared sensor data to near-surface information and improve the judgment of the relationship between anomalies and earthquakes.
关键词
TROPOMI/青藏高原东北缘/川滇地区/断裂带排气
Key words
TROPOMI/Northeast margin of the Qinghai-Tibet Plateau/Sichuan-Yunnan region/Exhaust in the fault zone
维普
万方数据